Join Date: Jan 2015
Location: Central Iowa
Bronco Info: 1979 Bronco 400m
You're on the right track. The keys here are getting that BLK/Y wire cut just as you described, and reconnected to the + side of the starter relay, just as you described. The appropriate sized crimp on ring terminal connector will do just fine.
The other 2 wires in that connector are actually NOT YEL & R, they are actually Y/BK & R/O.
They are both used for the ammeter gauge in the instrument panel with R/O being the supply and Y/BK being the return in the loop. They are no longer used with this alternator setup. Cut both and seal off the ends appropriately.
The rusty connection for the BK/W wire is a junction block. In fact, I believe this is a circuit breaker junction block if I'm not mistaken. The BK/W wire is to the exterior wiring marker lamp relay. Keep that right where it is.
Regarding the 2 wire connector. Are you referring to the 2-wire connector that appears to have a white & yellow wire coming from it?
I believe that would actually be a w/bk wire which is supposed to be the electric choke feed. Is the other wire truly straight yellow or does it have a colored stripe on it? If it is truly just yellow, then it was a voltage regulator connection and is no longer needed. However, it was also spliced into the radio noise capacitor so if you are running the OEM radio then you might consider leaving that hooked up to the capacitor. I run an aftermarket radio and do not have the capacitor any longer and have no issues.
1979 Bronco 400m 0.060 over 'Black Betty'
-Edelbrock Carb & Manifold, Hedman Headers, Flowmaster Dual Mufflers, Comp Cams Extreme Energy Cam & Valvetrain Kit
-Duff LAs, WH progressive coils, Bilstein 7100s Lincoln HB, York OBA, Taurus Radiator Fan